Collinder 196

(MWSC 1552; OCL 721; ESO 432 07)

0.19 UTI

0.0

C_N

0.08

C_dens

0.25

C_C3

0.31

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 22

Radius (P>50% members) 8.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.25 Low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Collinder 196 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.12 kpc) differs significantly from the median photometric distance (~1.39 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Old

Data

🔍 Search references for Collinder 196 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	131.308	-31.737	0.32	-4.69	3.023	–
Just et al.	2023	131.251	-31.622	–	–	–	–
Bica et al.	2019	131.28	-31.647	–	–	–	–
Kharchenko et al.	2016	131.251	-31.622	–	–	–	–
Kharchenko et al.	2013	131.257	-31.625	–	-3.94	1.06	–
Dias et al.	2002	131.25	-31.633	–	-16.6	8.92	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	Bfr	BSS
Just et al.	2023	–	–	–	1820	–	178	–	–
Kharchenko et al.	2016	1.39	0.78	–	1820	–	–	–	–
Kharchenko et al.	2013	1.39	0.78	–	1820	–	–	–	–
Dias et al.	2002	0.66	0.53	–	79	–	–	–	–

Visualization

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